I'm in Michigan and it gets pretty darn cold during the winter. I'm curious what others do in similar climates to continue brewing?
I'm in Ottawa, Canada, so I'm sure it gets just as cold here as it does where you are.
I brew in my garage in the winter. I do 5/10 gallon all-grain batches with propane. I've begun acquiring the materials to construct an electric kettle that I plan on using as an HLT so that I can do at least the first part of brewing in my basement, only having to move to the garage for the actual boil.
1) How do you use an immersion or counter flow wort chiller in cold climates in your garage?
I use a plate chiller. I have a hose faucet in my garage that is my source for cold water. It's attached to the wall that is part of my house (i.e., it's heated living space on the other side), so it doesn't freeze. However, the water coming out of it is very cold in the winter, which makes chilling a dream. I can get 5 gallons of boiling wort down to 65° F in about 3 minutes.
The one thing you have to be careful of with winter brewing is: Don't leave "wet" equipment in the garage. In the summer, I can just leave my chiller, pumps, hoses etc. in the garage. But in the winter, it really sucks to have your pump frozen solid and just buzz at you when you need it.
For chilling, I recirculate the wort back to the boil kettle until it's down to the target temperature (as opposed to running it directly into a fermenter in one pass). I take cold water from the faucet, run it through the plate chiller, collect the first (hottest) bit of water in a bucket with a scoop of PBW. I use that for cleaning later. I collect the next bucket of (still pretty hot) water to use as clean, hot water for cleaning. I collect one more bucket of cooler water for initial rinsing and flushing of equipment, then the remainder just gets dumped down the driveway or into a snowbank beside my driveway. In the winter, it takes about 5-6 buckets of chill water to chill a 5 gallon batch down to 65° F.
2) Once you move up to full boil, all grain brewing, how do you chill your wort.... Especially in winter?
Cold water from the faucet in the garage, through a plate chiller, recirculating the wort back into the boil kettle until it hits 65° F (3 minutes for a 5 gallon batch, 6-7 minutes for a 10 gallon batch).
3) Based on question #3, I assume once you get to this level you are using some type of wort chiller and not using a water/ice bath?
Yup, the aforementioned plate chiller and a Chugger pump.
4) Once you move up to bigger batches, (10 gal +) how do you move your batch around? (I.e. From garage to basement)
I leave it where it is (on the burner) until it's chilled, then drain it from the valve into the first carboy. Once that's filled, I lift the kettle up onto the table and fill the second carboy. I carry each carboy downstairs to the fermentation chambers one at a time, using milk crates and BrewHauler straps.